asyncrat | 68b32fe3170689eaca32c53ebddcc60f6ded63b25ff20cc550b7bdf716bc5c02

Analysis

max time kernel
597s
max time network
360s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 20:19

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General

Target

Rdp Cracking tool.zip
Size

12.9MB
MD5

9ed3a65009cb13d215fa1de6e4dbdb0d
SHA1

6129d957e98a0d69e3a34871c811f7f63faa050b
SHA256

68b32fe3170689eaca32c53ebddcc60f6ded63b25ff20cc550b7bdf716bc5c02
SHA512

7fe97ffa1d9a0106091b3547a984e11f552d6b8874f4cff6e79373abe08264837bd6538f4629d95261845c49745c707a22aef41ceed23b4ea667178dbe95bec6
SSDEEP

393216:w0RA7GG0bk/mG8VRRfa657IAsA9me7RzXtC:VxG0b8mGCny6tFsA/m

Score

10^/10

asyncrat stormkitty default discovery persistence privilege_escalation rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot6006276473:AAEypRbqeWzZbeRTuV80WT3BeM7SOhM1n1E/sendMessage?chat_id=2045667165

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016df8-4.dat	family_stormkitty
behavioral1/memory/2500-12-0x0000000000020000-0x0000000000050000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0009000000016df8-4.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2500	Kport scan Activator.exe
2752	KPortScan3 @virusbug1.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\cf4513f78e94d3d33af18a9951a75e10\Admin@KHBTHJFA_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	Kport scan Activator.exe
File opened for modification	C:\Users\Admin\AppData\Local\cf4513f78e94d3d33af18a9951a75e10\Admin@KHBTHJFA_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	Kport scan Activator.exe
File created	C:\Users\Admin\AppData\Local\cf4513f78e94d3d33af18a9951a75e10\Admin@KHBTHJFA_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	Kport scan Activator.exe
File created	C:\Users\Admin\AppData\Local\cf4513f78e94d3d33af18a9951a75e10\Admin@KHBTHJFA_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	Kport scan Activator.exe
File created	C:\Users\Admin\AppData\Local\cf4513f78e94d3d33af18a9951a75e10\Admin@KHBTHJFA_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	Kport scan Activator.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	icanhazip.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Kport scan Activator.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
1308	cmd.exe
1420	netsh.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Kport scan Activator.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Kport scan Activator.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1728	7zFM.exe
2500	Kport scan Activator.exe
2500	Kport scan Activator.exe
2500	Kport scan Activator.exe
2500	Kport scan Activator.exe
2500	Kport scan Activator.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1728	7zFM.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeRestorePrivilege	1728	7zFM.exe
Token: 35	1728	7zFM.exe
Token: SeSecurityPrivilege	1728	7zFM.exe
Token: SeDebugPrivilege	2500	Kport scan Activator.exe
Token: SeSecurityPrivilege	1728	7zFM.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1728	7zFM.exe
1728	7zFM.exe
1728	7zFM.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2500	1728	7zFM.exe	30
PID 1728 wrote to memory of 2500	1728	7zFM.exe	30
PID 1728 wrote to memory of 2500	1728	7zFM.exe	30
PID 1728 wrote to memory of 2500	1728	7zFM.exe	30
PID 1728 wrote to memory of 2752	1728	7zFM.exe	31
PID 1728 wrote to memory of 2752	1728	7zFM.exe	31
PID 1728 wrote to memory of 2752	1728	7zFM.exe	31
PID 1728 wrote to memory of 2752	1728	7zFM.exe	31
PID 2500 wrote to memory of 1308	2500	Kport scan Activator.exe	34
PID 2500 wrote to memory of 1308	2500	Kport scan Activator.exe	34
PID 2500 wrote to memory of 1308	2500	Kport scan Activator.exe	34
PID 2500 wrote to memory of 1308	2500	Kport scan Activator.exe	34
PID 1308 wrote to memory of 580	1308	cmd.exe	36
PID 1308 wrote to memory of 580	1308	cmd.exe	36
PID 1308 wrote to memory of 580	1308	cmd.exe	36
PID 1308 wrote to memory of 580	1308	cmd.exe	36
PID 1308 wrote to memory of 1420	1308	cmd.exe	37
PID 1308 wrote to memory of 1420	1308	cmd.exe	37
PID 1308 wrote to memory of 1420	1308	cmd.exe	37
PID 1308 wrote to memory of 1420	1308	cmd.exe	37
PID 1308 wrote to memory of 2100	1308	cmd.exe	38
PID 1308 wrote to memory of 2100	1308	cmd.exe	38
PID 1308 wrote to memory of 2100	1308	cmd.exe	38
PID 1308 wrote to memory of 2100	1308	cmd.exe	38
PID 2500 wrote to memory of 1416	2500	Kport scan Activator.exe	39
PID 2500 wrote to memory of 1416	2500	Kport scan Activator.exe	39
PID 2500 wrote to memory of 1416	2500	Kport scan Activator.exe	39
PID 2500 wrote to memory of 1416	2500	Kport scan Activator.exe	39
PID 1416 wrote to memory of 1788	1416	cmd.exe	41
PID 1416 wrote to memory of 1788	1416	cmd.exe	41
PID 1416 wrote to memory of 1788	1416	cmd.exe	41
PID 1416 wrote to memory of 1788	1416	cmd.exe	41
PID 1416 wrote to memory of 1020	1416	cmd.exe	42
PID 1416 wrote to memory of 1020	1416	cmd.exe	42
PID 1416 wrote to memory of 1020	1416	cmd.exe	42
PID 1416 wrote to memory of 1020	1416	cmd.exe	42

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Rdp Cracking tool.zip"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Users\Admin\AppData\Local\Temp\7zO0C645C96\Kport scan Activator.exe
  "C:\Users\Admin\AppData\Local\Temp\7zO0C645C96\Kport scan Activator.exe"
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2500
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    - Suspicious use of WriteProcessMemory
    PID:1308
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:580
  - - C:\Windows\SysWOW64\netsh.exe
      netsh wlan show profile
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Wi-Fi Discovery
      PID:1420
  - - C:\Windows\SysWOW64\findstr.exe
      findstr All
      4⤵
      System Location Discovery: System Language Discovery
      PID:2100
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1416
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:1788
  - - C:\Windows\SysWOW64\netsh.exe
      netsh wlan show networks mode=bssid
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:1020
- C:\Users\Admin\AppData\Local\Temp\7zO0C627996\KPortScan3 @virusbug1.exe
  "C:\Users\Admin\AppData\Local\Temp\7zO0C627996\KPortScan3 @virusbug1.exe"
  2⤵
  - Executes dropped EXE
  PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Wi-Fi Discovery

T1016.002

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\7ae50641744e28c173010c1d7203827e\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zO0C627996\KPortScan3 @virusbug1.exe

Filesize
191KB

MD5
47e24bb0723a41606259b71c34b2e5e2

SHA1
dec3e4e1509d293058848d53af25b0cfba804cdd

SHA256
476c5a362a758bca9ac441b673cd0777982ea3a6ca13b4299c3ff15c780262a4

SHA512
a125b431e2add3e74eb58d3abe26063ab8d846e625c144ecee6dc1ef599b1dd783ef5757c9dfa37e446210649b6426575333b4607db523ad7bd556fc60ef7d96

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zO0C645C96\Kport scan Activator.exe

Filesize
170KB

MD5
3c281ce62da1597fced6efd977bb0a37

SHA1
c4c337871c159743cb105daaf7ff43e2667c4b07

SHA256
e7ccef1109892156439560eb77bfa374aafed372724f646c040003fc54d1de4e

SHA512
5b41802eec1a0e4ebf0e690923375e8a0f4ec5b17a61fb67386efb9bcf3fbd03a2f88794feac4a9a89279006ee39fa1fd42de456d5332cfe9111cae2c780b220

Download Submit
memory/2500-12-0x0000000000020000-0x0000000000050000-memory.dmp

Filesize
192KB

Download